ref: 015c3ecea040a3e2b7fdacc73e4cc7d289924ad6
dir: /utils/libregexp/regerror.c/
#include <lib9.h>
#include "regexp.h"
void
regerror(char *s)
{
char buf[132];
strcpy(buf, "regerror: ");
strcat(buf, s);
strcat(buf, "\n");
write(2, buf, strlen(buf));
exits("regerr");
}